Re: [PATCH] S/390: Disable vectorization for loops with few iterations

2017-03-06 Thread Andreas Krebbel
> gcc/ChangeLog: > > 2017-03-02 Robin Dapp > > * config/s390/s390.c (s390_option_override_internal): Set > PARAM_MIN_VECT_LOOP_BOUND Applied. Thanks! -Andreas-

Re: [PATCH] S/390: Disable vectorization for loops with few iterations

2017-03-03 Thread Richard Biener
On Thu, Mar 2, 2017 at 4:39 PM, Robin Dapp wrote: > Hi, > > the following patch defines the PARAM_MIN_VECT_LOOP_BOUND parameter in > the s390 backend. It helps with the vectorization epilogue problem > described here [1]. > I see an overall performance increase of > 1% in SPECfp2006, yet some > c

[PATCH] S/390: Disable vectorization for loops with few iterations

2017-03-02 Thread Robin Dapp
Hi, the following patch defines the PARAM_MIN_VECT_LOOP_BOUND parameter in the s390 backend. It helps with the vectorization epilogue problem described here [1]. I see an overall performance increase of > 1% in SPECfp2006, yet some cases like cactusADM regress. This seems to be caused by the vec